使用axios调用进行Jest测试

// api.js
export const fetchData = async () => {
  const response = await axios.get('/endpoint');
  return response.data;
};

// api.test.js
import axios from 'axios';
import MockAdapter from 'axios-mock-adapter';
import { fetchData } from './api';

describe('fetchData', () => {
  let mock;

  beforeEach(() => {
    mock = new MockAdapter(axios);
  });

  afterEach(() => {
    mock.restore();
  });

  it('should fetch data successfully', async () => {
    const data = { message: 'success' };
    mock.onGet('/endpoint').reply(200, data);

    const result = await fetchData();
    expect(result).toEqual(data);
  });

  it('should handle errors', async () => {
    mock.onGet('/endpoint').networkError();

    await expect(fetchData()).rejects.toThrow('Network Error');
  });
});